Improvement in sewing-machine casters



. H. PLANK.

Sewi ng-Machine Casters.

Patnted Jan. 5,1875.

WITNESSES ATTORNEYS.

m: cnmc cgwprb-Llrujaa-M PARK PLACEINN l l r UNITED STATES PATENTOFFICE,

JOHN H. PLANK, OF BLOOMFIELD, IOWA.

l MPROVEMENT IN SEWING-MACHINE CASTERS.

Specification forming part of Letters Patent N 0. 158,436, dated January5, 1875; application filed May 23, 1874.

(Men B.

To all whom it may concern:

Be it known that I, JOHN H. PLANK, of Bloomfield, in the county of Davisand State of Iowa, have invented a new and Improved Sewing-MachineCaster, of which the following is a specification:

My invention consists in combining a lever with the socketplates whichreceive the feet of the sewing-machine legs, said lever being piy'otedand otherwise so arranged that by a movement thereof the casters of oneend of the socket may be lifted off the floor and the support of themachine transferred to the legs, to hold the machine firmlyagainstshifting about while being used.

Figure l is a side elevation ot' one of myimproved caster contrivances.Fig. 2 is a plan view.

Similar letters of reference indicate corresponding parts.

A represents a couple of sockets for the feet of one end of asewing-machine formed in plate B, mounted on two casters, 0, and havinga tongue, D. These tongues of the two plates for each end of the machineare fitted to be clamped together by a bolt, E, and one of them isslotted, so that the plates can be adjusted toward and from each otherto adapt the sockets to the feet of any sewing-machine. Near thecasters, at one end of these combined plates, legs H are pivoted to oneof the tongues of the socket-plates, and have a hand-lever, I, connectedto them to raise the plates and take the support of the machine on thelegs to hold the machine steady for working it. These legs swing againstthe shoulders at K, and are thus held so as to prevent the plates fromtalling, so that the casters will touch the floor when the legs areturned in that direction, but in the other direction they are free toswing up enough to let the casters drop onto the floor. Two sets ofthese caster socket-plates are used, one for each end of the machine,the two sets being entirely independent from each other, so that noadjustment of any contrivance is required to apply them to machines,thus facilitating the application; but in the other direction they haveto be adjusted by the tongues D and bolt E.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- The legs H and a lever, I, pivoted to one of thetongues D of the socket-plates A, and arranged in relation to theshoulders K as described, for supporting and steadying the machine,substantially as specified.

JOHN H. PLANK. Witnesses:

H. G. TRAVERSE, F. W. EIOHELBERGER.

